Transformer cable box is a box that houses the cable connections inside an electrical transformer unit. In electrical transmission lines, electrical transformers are often used to provide energy from high-voltage transmission lines to low-voltage points of use. These transformer units are used to convert electricity from high voltage lines into lower voltages. The transformer cable box is located inside the transformer unit, protecting and organizing the cable connections required for this conversion process. Additionally, these boxes are often lined with insulating materials designed to ensure electrical safety.